Locomotive-crane underframe.



T. E. ADAMS & C. H. HOWARD. LoooMo'rIvE CRANE UNDERFRAMB. APPLICATION FILED .TUNE 12. 190B.

908,534. Patnd Jan. 5, 1909.

lllllllilrlmll L UNITED i. ."l `ATES PATENT OFFICE.

MISSOURI, ASSIGNURS 'lO LOCOMOllVl 'lliNDllt FRAME COMPANY. OF ST. LOUIS, MIS- SOURI, A CORPORATION Ol" DELA WARN.

LOCOMOTIVE-CRANE UNDERFRAME.

No. eoaiiaq.A

Specification of Lettera Patent.

Patented Jan. 5, 1909.

` ilicatlon filed June l2, 190B. Serial N0. 438,126.

To all whom it may concern:

15e 'it known that we, 'liioMAs E. ADAMS und CLAiiENCE H. yHovviiiin, citizens of the United States, residing, respectively, at Pine Bluff, in the county of Jellerson and State of Arkansas, and at St. Louis, in the State of Missouri, have invented a new und useful lmprovemeiit in LocomotiveC'riine Under frames, of which the following is a specification.

Our invention relates to a locomotive crane iinderframe which ordinarily consists of-a bn-ilt up wooden or rolied steel frame work mounted on wheels adapted to travel along a railroad track and surmounted by a horizontally arranged bed-plate which is pivoted centrally to the underframe and adapted to carry the steam engine, boiler, derrick, hoisting mechanism, and other appurtenances of the crane. On the under frame, between it and the bed-plate, is fixed. concentrically with the said pivot, a circular toothed rack which is engaged by a correspondingly toothed wheel or pinion mounted in suitable bearings on the bed-plate, where by the latter with its appurtenances is adapted to be horizontally revolved about the underframe, the component parts of thc underframe with its circular toothed rack being of se arate construction secured together by bo ts, rivets` or, otherwise, whereby the rigidity of 4the undei'fi'anie is im aired; and our invention has for ite ob- ]ect to provide a strong, rigid, compact.. and durable metallic iinderframe having all itz princi al parte combined in one piece without t e une of fastenings, as Iicreinsifter described and claimed, reference being hail to the accompanying drawing, whcreon,

Figure 1, .is a top plan "iew of our ini- )rovecl metallic locomotive crane underrame; Fig. 2, a side elevation thereof; Fig.

3, a longitudinal vertical section through the saine on line 3 3, in Fig. l, and 4, :i transverse vertical section thereof on line 4, 4, in Fig. l.

Like letters and numerals ol reference le A l ol' llic orci'liiiiigiiig inclined track 10 at t e note like parts in all the figures.

a represents our improved metallic loooinotive crane under'frame which is coiriposcd preferably, of cast steel integral throughout, and consists in the present case of ai hoi-izoiitiilly arranged rectangular box-Hluuicil poition b of suitable depth constituting llic uiiderlriniie proper, and surrounding a middle upright tubular portion c which peripherally forms the inside wall of the boxshaped portion b and projects upward from the closed bottom l thereof to a suitable distance above the to) of its side walls 2; and vnd walls 3, w-hicli correspond to the side :ind end sills respectivel of an ordinary metallic locomotive ten er or car underfrsune, the walls 1, 2, and 3, of the boxshaped portion b combined with the periphery of the tubular portion a being so a.rranger-'l as to form a receptacle for2 and insure the uniform distrib/,ution therein of the ballast used for maintaining thestaibility if the iinderrame a with its wheels and a peiidages on the railroad track during -t e operation of the crane.

Cvitrall within the tubular portion 0 and niiiteto the inner wall thereof by a series of horizontal arms or radial members 5, is formed the upright tubular bearing 6 for the cent-er pin or pivot 7 (indicated by dotted 4lines -in Fi 3)of the bed-,plate B (indicated by dotte lines in Fig. 2), which carries the steam crane and its ap urtenances, and is mounted tl* erewith on t e n-nderframe a in the usual ell-known manner, but which not forming part of our invention needs no further description, the tubular bearing 6 having a surrounding horizontal annular surface 6 at the top adapted to forni a hearing for the lower face of the central hub (or e uivalent member 9 on the underside of tie bed-plate 8 t rou h which the center pin or pivot' 7 passes. T e tubulaiportioii c isiY formed outwardly at the lop `.vith u downwardly inclined surface portion or track 1U which is concentric with thel couler hearing 6 and adapted to form La l'ioiii'ing for thc conical rollers 11 which are iutcrpiisind between lhc underframe a thereat and a correspondingly inclined bearing surface im thc ui'iderside of the bed-plate 8 for Supporting :ind maintaining the parallelism of thc `hitter to the uudeiframe a at all times.

Demanding from the outer circular ed fe l top of the tubular portion o, is formed s. cir` i-ulur wall or weli 12 v'which is concentric with the vviuill of lliii tubular portion o and 11i-uhu' bearing I5, iuid united at the bottom to tlu-l walls 2 iinil 3 (preferably at their middle and adjoining ends or corners), and-bottom l of the box-shaped portion b and to Hu: wall of the tubular portion c, by hori- /.ontal T-she ed members 13 which are ru.- dial to the tu ular portion c, the wh'ole forming a strong, rigid, compact, and durable structure which being intefrral is adapted to resist the varying stress o' the steam crane without loosening and ploy of its arts.

Around the wall or web 12 of t e tubular poxtion c, and preferably integral tl'ierewith, at a suitable height from the top of the boxshaped portion l, or body of Vthe undcrframe a, is formed a circular toothed rack. 14 which is adapted to be engaged by :1 correspondingl sha )ed toothed wheel or pinion 1.5 (in icate by dotted lines in Fig. 2) mounted in suitable bearings on 'the bed-plate 8, whereby the latter with its lood is revolved about its center pin and bearin 6 relatively to the underframe a. in the usua well-known manner. Or if desired the rack 14 may be made Separately and in segments fixed to the wall 12.

0n the underside of the box-shaped portion l) of the underframe a and integral therewith, are formed the brackets 16 to which are fixed the pedestals (not shown) of the exleboxes;.and on the outer face of, and integral with each end sill (or wall 3) of the underframe a; is formed a drew-bar pocket 17.

le do not limit ourselves'to the articular shape end disposition describe component members of the underframe a as these may obviously 'be varied with'ont aifecting the principle of our invention.

W'het- We claim as our invention and desire to secure by Letters Patent s:-

1. In a. locomotive crane underframe of the character described, the combination of of the u. bearing for tho pivot pin of the bed-plnbe of the said crane, and a circular toothed ruck concentric with the bearing, for engagement by a toothed wheel rotatably carried by the said plate, the said rack being integral with the said frame, substantially ns described.

2. In a locomotive crane underframe of the character described, the combination of n bearing for the pivot pin of the bedqplate ol the seid crane, und n circular toothed rack concentric 'with the bearing. for engagement by n toothed wheel rotatably car ried vby said plate, the said bearing and rack being inte rral with the said frame, subetanw tially as f escribed.

3. A locomotive crane underframe of the character described, comprising n horizontally arranged rectangular box-shaped -mrtion adapted to forni a receptacle for el last, a middle upright tubular portion intersecting and proJecting above the box-shaped portion, an u right pivotal bearing located centrally witiin the tubular portion and united thereto, and a circular toothed reels.' surrounding,r the said projecting part of the tubular portion and concentric with the said bearing, all the said parts beingr integral, substantially as described.

THOMAS E. ADAMS. CLARENCE H. HOWARD.

Witnesses to the signature of Thomas E. Adams:

W. I. TOMME, J. E. BROWN.'

Witnesses to the signatureJ of Clarence H. Howard:

H. C. IBELLVILLE, Enwnxn W. 

